Revolving door drive mechanism for a door having at least one leaf

Abstract

A revolving door drive for a door includes an electrohydraulic drive unit actuating at least one door leaf.

1 .- 13 . (canceled)  
     
     
         14 . A revolving door drive for a door comprising at least one leaf, the revolving door drive comprising: 
 a door closer configured to displace the at least one leaf in opposite opening and closing directions; and    an electrohydraulic drive unit coupled to the door closer and operable for actuating the door closer.    
     
     
         15 . The revolving door drive of  claim 14 , wherein the electrohydraulic drive unit comprises: 
 a pump operable for delivering hydraulic fluid,    a DC motor coupled to and operable for actuating the pump, and    a hydraulic connection block ( 6 ) in flow communication with the pump.    
     
     
         16 . The revolving door drive of  claim 15 , wherein the DC motor is an air-core motor.  
     
     
         17 . The revolving door drive of  claim 15 , wherein the pump is an internal gear pump.  
     
     
         18 . The revolving door drive of  claim 15 , further comprising a mounting plate supporting the door closer and the electrohydraulic drive unit, the mounting plate being configured to provide flow communication between the electrohydraulic unit and the door closer.  
     
     
         19 . The revolving door drive of  claim 18 , further comprising a first gear wheel and a second gear wheel mounted to the mounting plate and to the door closer, respectively, and meshing with one another.  
     
     
         20 . The revolving door drive of  claim 19 , wherein the first and second gear wheels each are toothed wheels.  
     
     
         21 . The revolving door drive of  claim 15 , further comprising a piston accumulator in flow communication with the electrohydraulic unit and operable for compensating a volume of the hydraulic fluid deliverable by the electrohydraulic unit.  
     
     
         22 . The revolving door drive of  claim 15 , wherein the DC motor, the pump, the hydraulic connection block, and the door closer are installed in a row.  
     
     
         23 . The revolving door drive of  claim 15 , wherein the door closer, the pump, the hydraulic connection block, and the DC motor are detachably coupled to one another and selectively replaceable.  
     
     
         24 . The revolving door drive of  claim 14 , further comprising 
 a slide rail mounted inside the door or a door frame;    an actuating lever having 
 one end mounted to the door closer, and  
 an opposite end coupled to the slide rail; and  
   a slide piece slidable along the slide rail.    
     
     
         25 . The revolving door drive of  claim 24 , further comprising a means for powering the electrohydraulic unit, the slide rail and the actuating lever being configured to accommodate the means for powering.  
     
     
         26 . The revolving door drive of  claim 14 , wherein the revolving door drive is configured to have a maximum width of about 40 mm, a maximum height of about 50 mm, and a maximum length of about 500 mm.